- Building platform infrastructure on top of Apache Hadoop stack: security model, HA clustering techniques, integration with enterprises services like LDAP, data visualization
- HBase architecture / internals
- Experience in security mechanisms, including security in distributed clusters (authentication & authorization, RBAC, ACLs, PAM, Kerberos, LDAP)
- HA, fault tolerance, distributed consensus protocols and architectures
- In-depth knowledge of JVM/JRE architecture and internals (JIT, class loading, garbage collection, memory allocation), experience in profiling Java applications, identifying memory leaks, CPU-bounded code etc.
- Oracle RDBMS scaling features and internals (partitionin...